On Wed, Aug 22, 2012 at 9:22 AM, Jonas Maebe <jonas.ma...@elis.ugent.be> wrote: > > Jürgen Hestermann wrote on Wed, 22 Aug 2012: > > >> Am 2012-08-22 13:45, schrieb Lukasz Sokol: >>> >>> Recompilation when one of units/libraries was upgraded, almost always >>> implies >>> rebuild. Who on Earth is so trigger-happy to upgrade, rebuild and not >>> test for >>> regressions? This is the only sane way to get the process going - >>> document it >>> *as MML said below*; >> >> >> That's not the point. Why on earth should a programmer *not* get as much >> help as possible >> from a programming language/compiler? That's the genuine purpose of a >> programming language. > > > Indeed. > > >> Though I don't know whether it can be implemented easily (if at all). > > > There are definitely some practical problems: > * class/record helpers. The last class/record helper for a particular type > that has come into scope automatically adds its methods to the helped > class/record. If symbols can only be accessed by explicitly qualifying them > with a separately specified unit alias, I don't see how you would "activate" > class helpers from aliased units. Would these be an exception to the rule? > Or would this require a new language construct to import all desired helper > types explicitly? > * Objective-Pascal categories are the same as class helpers, except that > there an unlimited number of categories can be active for a single class at > the same time. In the end, it's the same problem as above though. > * Objective-Pascal also has the special "id" type. It is possible to call > any method of any class type (and associated categories) in scope on a > variable of this type. Again, I don't see a way how the proposed mechanism > could be used to tell the compiler which classes it should search and which > not if it should only search fully qualified identifiers from aliased units. > > There may be more issues, but these are the ones I can immediately think of.
At least you thought about it. :) Well, must be a solution, but this (new) feature should please everyone first, I think. Marcos Douglas _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal